Movable derrick-crane in connection with motor-trucks.



SA ZIED. MOVABLE DERRICK CRANE IN CONNECTION WITH mo oa m'uicxs.

APPLICATION FILED IUL'Y 8, I915 Patented Dec. 28, 1915.

2 SHEETSSHEET I.

PW v-wassc-s S. ZIED.

MOVABLE DERRICK CRANE IN CONNECTION WlTH MOTOR TRUCKS.

APPUCATION FILED JULY 8, m5.

1,165A83. 1 Patented Dec 28, 1915.

2 SHEETS-SHEET 2.

SAMUEL ZIED, OF PHILADELPHIA, PENNSYLVANIA.

MOVABLE DERRICK-CRANE IN CONNECTION WITH MOTOR-TRUCKS.

Application filed July 8, 1915.

To all whom it may concern:

Be it known that I, SAMUEL ZIED, a citizen oi the United States, residing at Philadelphia, in the c unty of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Movable Derrick-Cranes in Connection with Motor- Trucks, of which the following is a specifiefficiently performs the functions for which it is intended.

With these and other ob ects in view, the invention consists in certain novel features of construction and combinations and arrange- Fig. 4 is a view in section on the line 4-4 of Fig. 1. Fig. 5 1s a view in transverse section on the line 55 of Fig. 2. Fig. 6 is a broken view in side elevation illustrating my improved boom, and Fig. 7 is an enlarged View in transverse section on the line 7-7 of Fig. 6.

1 represents a motor vehicle which is driven by a motor 2, and 3 is a second motor located on top of the vehicle 1, and both of said motors supplied by the necessary current from a storage battery 4.

It is, of course, to bB lIIIdBISlJOOd that my.

invention is not limited to any particular LGHIIS for drivin the vehicle, but as a 'convenient n'u ms preferably employ elec- Specification of Letters Patent.

Patented Dec. 28, 1915..

Serial No. ashes.

tric ty, and utilize the same for driving the vehicle and for operating my improved derr1ck crane as will now be described.

5 represents a vertical post which is mounted to turn in a bearing 6 in the vehicle floor 7, and is strengthened by stays 8 which are secured to a ring 9 located at the upper end of the post, and in which the post freely turns. A stra 10 is fixed to the post 5, and s prov ded with a pivot bolt 11 pivotally connecting my improved boom 12 to the post. This strap 10 is so constructed as to allow a free passage of the cables which will be hereinafter described. A ring 13 is mounted to turn on the end of the post 5, and a ring 11 is mounted to turn on the lower end of the post 5. These rings 13 and 14 support a plurality of pulleys 15 and 16 respectively.

My improved boom 12 shown most clearly in Figs. 6 and 7, comprises two members 12 and 12. The member 12 is of geneeal M shape in cross section. while the member 12* is of general inverted N shape, so that the two parallel longitudinal webs of the member 12 will rest between the webs of the member 12, thus both of the members have their webs positioned edgewise, and impart the maximum of strength to the booms The members are movable relative to each other, and slide freely'w'hen operated.

A U-shaped band 17 is secured to the upper end ot the member 12, and has a roller, 18 at its open end on which the member 12* rolls. This band with its roller maintains the members together, assisted by the load,"

20 is located, while a pulley 21 is secured to the side of member 12 adjacent its free end. Member 12 has an eye 22 adjacent its lower end, and band 19 is provided with aneye 23 at its upper end.

The motor 3 above referred to, drives a shaft 24 containing a plurality of drums 25,

'26, 27, 28'and 29 respectively. These drums and at the free end of member 12" a pulley lot that by'the operation of the said drums, the post with its boom may be turned in both directions. y A cable 33 is secured to the eye 23, is 5 passed around certain of the pulleys 15 and 16 on the rings 13 and 14 respectively, and secured to the drum 26. A, cable 34: supports at its free end a bucket or other load 35, is passed over the pulley 20 on the free end of the boom 12, and thence over pulleys 15 and 16 of rings 13 andla, and secured to drum 25.

A cable 36 is secured to the eye 22 of boom member 12", is passed over the pulley 15 21, thence over pulleys 15 and 16 of the rings 13 and 14, and secured to the drum 27. \Vhen the pull is had on cable 36, it operates to move the boom member 12 longitudinally relative to the member 12, cansing the boom to'lengthen, and this operation can be performed either during the lifting operation or at any intermediate point in the operation.

Cable 33 operates to raise and lower-the boom, cable 34 to raise and lower the load,

and cable 32 to turn the craneso as to position' the load as desired.

Various slight changes might be made in the general form and arrangement of parts a described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider m self at-li'berty to make such changes and alterations as fairly fall within the spirit and 35 scope of the appended claims. I

, Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: 1. In a derrick crane, 'the combination '40 'with a post, of a boom pivotally cormected to the post and comprising two members, each of said members comprising a. single integral metal bar having parallel webslocated side by side with the webspositioned edgewise to supportthe load, and, means for moving one of said members relativeto the othen'substantially as described. 2. In a derrick crane, the combination with a post, of a boom pivotally connected 5Q't the post and comprising two members,

each of said members comprising; a single'in tegral metal bar having parallel webs located side by side with the webs positioned edgewise to support the load, a pulleyon the free end of one of said members, a load supporting cable located on said pulley, and means for moving thepulley carrying member relative to the other member, substantially as described.

3. In a derrick crane, the combination with a post, of a boom pivotally connected to the post and comprising two members,

each of said members comprising a single to the boom and adapted to raise and lower the same, substantially as described.

4. In a derrick crane,the combination with a post, of a boom .pivotally connected to the post, said boom comprising two members, onemember of general M shape in cross section, the other member of inverted N shape in cross section with the webs o'f the two members located side by side, means for moving one member relative to the other, and means for raising and lowering and swinging the boom laterally, substan-l tially as described. a

5. The combination with a movable support, of a post having rotary mounting thereon. a boom-.pivotally connected to the i post, said boom comprising two members,

one member of general M-shape in cross sec 3 tion, the other member of inverted N-shape members located side; by side, a drum shaft 7 on said support containing a plurality of drums, cables connected to sa d drums, one of SfllCl cables connected to the boomfor raising and lowering the same, another'supported on the boom and op'erating asa load support, and another-of said cablesadapted'f to turn the post, substantially as described.

y In testimony whereof ,I have signed my name to this specification in the presenceof two subscribingwitnesses. SAMUEL ZI'ED. Witnesses; a

C. R. Zinc-Leia, S. W. FOSTER.

in cross section with the webs of the twofi' 

